Many items found in the natural world occur in coats of arms, including many plants that people of the middle ages would be familiar with. Several varities of bush and small plants frequently found in the hedgerows beside fields can be observed A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P270, in addition to the famous thistle of Scotland Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P147. A sprig is a pleasant item of this type to find, allowing the artist licence to show detilas of leave and seed if so desired.